<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>prop 验证</title>
  <script src="../vue.js"></script>
</head>
<body>
  <div id="app">
    <Child3 :age="19"></Child3>
  </div>
  <script type="module">
    import { Child3 } from './Child3.js'
    new Vue({
      el: '#app',
      components: {
        Child3
      },
      data() {
        return {
          hello: 'hello'
        }
      }
    })
  </script>
</body>
</html>